Tanita KD-200 User manual

Category
KD200
Service Manual
page Page 1/10
Name: Kitchen Digital Scale
Model : KD200
Contents
1．Diagram of product………………………… 2
2．Diagram of mechanism Assy……………… 3
3．Parts List ………………………………… 4
4．Calibration ………………………………… 5
5．Specification chart…………………………… 6
6．Trouble shooting ………………………… 7
7．Diagram of wiring(DC) …………………… 9
8．Diagram of wiring(DC)………………………10
Symbol Description Page Date Name Approved by
Approved by Checked by Designed by Establishment
Apr 17, 2002
TANITA CORPORATION
Dongguan

Category
Parts List
KD200
Service Manual
page Page 4/10
No Parts name Quantity Unit price
(US$) Amount (HKD)
1 Stainless tray 1
2 Plastic tray 1
3 Plastic housing 1
4 Plastic base 1
5 Battery cover 1
6 Shield plate 1
7 Mechanism Assy 1
8 Battery contact plate A 1
9 Battery contact plate B 1
10 Battery contact plate C 1
11 PCB Assy (1kg 2kg 5kg) 1
12 Name plate 1
13 Name plate of side 1
14 Rubber foot 4
15 Screw M4×16 4
16 Screw M4×20 4
17 Screw M4×40 4
18 Screw M3×5 2
19 Screw M3×12 4
20 Screw M5×20 4
21 Screw M4×20 2
22 Nut M4 2
23 Filter PCB(AC use only) 1
24 DC jack(AC use only) 1
25 DC jack seal(AC use only) 1
26 Mechanism (1kg 2kg 5kg) 1
27 Mechanism holder 2
28 Flexible sensor 1
29 Fixed sensor 1
30 Insulation A 2
31 Insulation B 2
32 Screw M5×16 1
33
34
35
36

Category
Calibration
KD200
Service Manual
page Page 5/10
Display
(1) Make sure that the Scale is turned OFF.
(2) Press and hold the OFF button ,and then click the ON button
3 times.
(3) Release the ON button and OFF button simultaneously.
(4) The screen will show ［8888］for 0.5 seconds.
(5) Then the screen will show ［A－о］, A is the specification
Code. Please refer to P6 for details .Now for example of 1kg/0~500g 1g 500~1000g 2g.
(6) The screen will show［о－1－］ in the stable situation
(7) Place a 500g weight(1/2capacity) on the mechanism’s platform
(8) The screen will show［о－2－］ in the stable situation
(9) Place a 500g weight(1/2capacity) on the mechanism’s platform again
(10) The screen will show ［8888］for 1.5 seconds
(11) Immediately ,the screen will show［0g］, Calibration finished.
(12) Remove the weight , the screen will show［－1000g］.
(13) Push the ON button , the screen will show［0g］,You can
take measurement.
<Notice>
(1) Notice the environment .You’ll get incorrect figures as a result of vibration,
Wind ,or the improper temperature.
(2) Notice the accuracy of the weight for Calibration.
(3) If the scale display is in conflict with the specification chart ,please return
to the manufacturer.
8888
о－0－
о－1—
о－2－
8888
0g
－1000g
0g

Category
Specification chart
KD200
Service Manual
page Page 6/10
Max
Capacity Min graduation A specification display
5000g
0g ……… 2500g ……… 5000g
（5g）（10g）
4
2000g
0g ……… 1000g ……… 2000g
（2g）（5g）
8
1000g 0g ……… 500g ……… 1000g
（1g）（2g）
о
5000g
11lb
0g…………………5000g
（5g）
0oz…………………11lb
（0.2oz）
0
2000g
70oz
0g…………………2000g
（2g）
0oz…………………70oz
（0.1oz）
0
1000g
35oz
0g…………………1000g
（1g）
0oz…………………35oz
（0.05oz）
2
5000g
0g…………………5000g
（5g）
2
2000g
0g…………………2000g
（2g）
4
1000g
0g…………………1000g
（1g）
6
4－
8－
о－
2－
4－
6－
О－
О－
2－

Category
Symptoms of major
errors and
Trouble shooting
KD200
Service Manual
page Page 7/10
（1）When the ON/TARE button is pressed ,the scale does not turn on .
Confirming Item Confirming content Repairing method
The battery direction Checking the battery
direction Insert battries in position paying
Colose attention to （+－）direction
The battery voltage 4 batteries have a voltage
higher than 4V If the voltage lower than 4V please Exchange 4 batteries simultaneously
Wires and battery
Contact plate solder According to item 1,2,3 on page 9 and to item 1,2,3,4,5
6,7 on page 10.
Arrange the connection in correct
order
Plastic housing Checking the switch plastic
is deformed Exchange the cover assembly If it is deformed
PCB Exchange the circuit-board
assembly No problem ，Can adjust the
contrast.
(2)［0］or weight values are unstable
Confirming Item Confirming content Repairing method
Temperature range Ensure proper temperature
range Maintain a constant temperature for 1~ 2 hours before use
Effecting as vibration Checking excessive vibration Stop vibration or move to a place
with little or no vibration
Effecting as wind Checking excessive wind Stop wind or move to a place
with little or no wind
Solder According to item 4,5 on
page 9 and to item 8,9 on
page 10
Arrange the connection in correct
order
Screw Checking the conation screw
M4×16 Double shear strength must be more than 0.6N·m
Mixing sundries According to item 28,29 on
page 3 Removing sundries
PCB Exchange new PCB Adjust again
(3) ［0］doesn’t exchange after the weight is measured
Confirming Item Confirming content Repairing method
Solder According to item 4,5 on
page 9 and to item 8,9 on
page 10
Arrange the connection in correct
order
PCB Exchange new PCB Adjust again

Category
Trouble
shooting
KD200
Service Manual
page Page 8/10
(4) The display is error
After exchange PCB the display is still error, please return the scale to
our manufactory for repairing.
(5) Turn on the power, the display show［8888］,then it Will disappear
Imediaterily.
After exchange PCB the display is still error, please return the scale to
our manufactory for repairing.
(6) The specification on the name plate is not in accordance with reality
The design specification is error . please return the scale to our
manufactory for repairing.
<Notice>
When you exchange PCB ,use the only TANITA components .Don’t use other
company components directly, because it must be aujusted according to specification
model KD200 have 9 kinds total, thus , it’s PCB have 9 kinds.